Answer:
72 cm
Step-by-step explanation:
You can solve this problem using the properties of the 45-45-90 right triangle. Assuming the 12 cm is a diagonal of the square, each side of the square can be modeled as x, and the diagonal will be x .
.
This means  , so
, so   .
. 
Next, to find the area of the square you take the square of any of its sides. Since x is the length of one side, and  , you can square
 , you can square  to get the area. This is equal to
 to get the area. This is equal to  or 72 cm.
 or 72 cm.
 
        
             
        
        
        
Ok.... so the first part is asking you what the perimeter of the picture itself is.
The picture is 5in by 7in.... SO you add 5+5+7+7=24.... So the perimeter of the pic is 24 inches.
Now part b
So the frame is one inch thick
This mean that the sides are now 2 inches longeron each side
 SO we have 7+7+9+9=32
So the perimeter is 32
I hope that helped!!!!! If you dont understand something ask and i will reexplain ;) 
        
                    
             
        
        
        
Answer:
18.75 ft
Step-by-step explanation:
The given scenario can be drawn as shown in the following attachment.
Given that,
 and
 and 
Therefore, 


 ft
 ft
AB is the height of the house.
 
        
                    
             
        
        
            
            
                What is the median of the data (180,175,163,186,153,194,198,183,187,174,177,196,162,185,174,195,164,152,144,138,125,110) 
                allsm [11]             
         
        
Put them in order from smallest to largest
110, 125, 138 , 144, 152,153,162, 163,164, 174, 174, 175, 177,180,183,185, 186,187, 194,195, 196,198
median = (174 + 175 )/2 = 174.5
answer
174.5
        
                    
             
        
        
        
Answer:
$13.38
Step-by-step explanation:
tax =7% x 12.50 = 7/100 x 12.5 = $0.875
Price to pay = $12.50 + $0.875 = $13.375 = $13.38